ML15219A667

Tables 1 and 2

ML15219A667
Person / Time
Site:	River Bend
Issue date:	09/04/2015
From:	Sharp W NRC/NRO/DSEA/RHMB
To:
Sharp W
References
Download: ML15219A667 (3)

Text

River Bend, Unit 1 Table 1. Current Design Basis Flood Hazards for Use in the MSA Mechanism Stillwater Waves/ Design Basis Reference Elevation Runup Hazard Elevation Local Intense Precipitation Unit 1 96.0 ft MSL Not 96.0 ft MSL FHRR Table 4.1-1 applicable Unit 2 80.3 ft MSL Not 80.3 ft MSL FHRR Table 4.1-1 applicable Streams and Rivers West Creek PMF 94.3 ft MSL Not 94.3 ft MSL FHRR Table 4.1-4 applicable Mississippi River 54.5 ft MSL Not 54.5 ft MSL FHRR Table 4.1-1 applicable Grants Bayou 101.8 ft MSL Not 101.8 ft MSL FHRR Table 4.1-1 applicable Failure of Dams and Onsite Water Control/Storage Structures No impact on No impact on No impact on the site the site the site FHRR Table 4.1-1 identified identified identified Storm Surge No impact on No impact on No impact on the site the site the site FHRR Table 4.1-1 identified identified identified Seiche No impact on No impact on No impact on the site the site the site FHRR Table 4.1-1 identified identified identified Tsunami No impact on No impact on No impact on the site the site the site FHRR Table 4.1-1 identified identified identified

River Bend, Unit 1 Table 1. Current Design Basis Flood Hazards for Use in the MSA Mechanism Stillwater Waves/ Design Basis Reference Elevation Runup Hazard Elevation Ice-Induced Flooding No impact on No impact on No impact on the site the site the site FHRR Table 4.1-1 identified identified identified Channel Migrations/Diversions No impact on No impact on No impact on the site the site the site FHRR Table 4.1-1 identified identified identified Note: Reported values are rounded to the nearest one-tenth of a foot.

River Bend, Unit 1 Table 2. Reevaluated Flood Hazards for Flood-Causing Mechanisms for Use in the MSA Mechanism Stillwater Waves/ Reevaluated Reference Elevation Runup Hazard Elevation Local Intense Precipitation Unit 1 98.3 ft MSL Minimal 98.3 ft MSL FHRR Tables 4.1-1, 4.1-2 & 4.1-3 Streams and Rivers West Creek PMF 95.1 ft MSL Not 95.1 ft MSL FHRR Table 4.1-4 applicable Mississippi River 59.7 ft MSL Not 59.7 ft MSL FHRR Table 4.1-1 applicable Note 1: The licensee is expected to develop flood event duration parameters and applicable flood associated effects to conduct the MSA. The staff will evaluate the flood event duration parameters (including warning time and period of inundation) and flood associated effects during its review of the MSA.

Note 2: Reevaluated hazard mechanisms bounded by the current design basis (see Table 1) are not included in this table.

Note 3: Reported values are rounded to the nearest one-tenth of a foot.